8. Since sulfur in rubber can darken precious metals, don't cushion a sink or drainboard with it. Instead, before washing stemware ornamented with gold, silver, or platinum, cushion the area with a folded towel.
9. Absolutely always hand-wash crystal with 24 karat gold, silver or platinum accents. To avoid damage, wash metal-decorated stemware in lukewarm water and allow it to cool before handling. Place large items in the water sideways, to transfer heat more evenly by adjusting the temperature of the glass article to the water.
10. Never pour very hot liquid into crystal, or expose it to any rapid temperature changes.
11. Before you store any crystal, always check for water spots by holding each piece up to light. Use vinegar on a soft, lint-free cloth or a soft sponge to remove any stains that remain, (especially from hard water mineral deposits) or soak them away with a 50/50 solution of vinegar and water.
12. To prevent staining crystal, regularly wash any crystal used for liquid storage after removing their contents. Both red wine and brandy stain crystal especially easily. Since flowers chemically change water, change water in crystal vases daily.
13. Narrow necks may complicate getting down to a vase's bottom with your cleaning cloth. If a bottle-brush doesn't reach, fizz an effervescent aspirin or denture-cleaning tablet into the bottom of a flower vase. Leave overnight and rinse clean for a spotless vase.
14. To remove stains inside containers, use uncooked, dry rice as a mild abrasive. Pour a handful of uncooked rice grains into an empty decanter and swirl the grains around to remove stains.